As Michael, Franklin, or Trevor, the player tracks down a garbage truck. The truck is moving, and can generally be found in the La Mesa or East Vinewood areas of Los Santos. After stealing the truck, the player must return it to the FIB warehouse in El Burro Heights. Before doing so, however, the player must deal with a two-star wanted level. The mission ends once the truck has been delivered. You could also use the cheat code to spawn in a Trashmaster. You may also find one right after the cutscene, and getting into will trigger the mission, once the phone call ends. This, however, will prevent the top speed gold medal objective.